summaryrefslogtreecommitdiffstats
path: root/networking-odl/networking_odl/common/callback.py
diff options
context:
space:
mode:
Diffstat (limited to 'networking-odl/networking_odl/common/callback.py')
-rw-r--r--networking-odl/networking_odl/common/callback.py73
1 files changed, 73 insertions, 0 deletions
diff --git a/networking-odl/networking_odl/common/callback.py b/networking-odl/networking_odl/common/callback.py
new file mode 100644
index 0000000..d9d168b
--- /dev/null
+++ b/networking-odl/networking_odl/common/callback.py
@@ -0,0 +1,73 @@
+# Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
+# All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import collections
+
+from oslo_log import log as logging
+
+from neutron.callbacks import events
+from neutron.callbacks import registry
+from neutron.callbacks import resources
+
+from networking_odl.common import constants as odl_const
+
+LOG = logging.getLogger(__name__)
+
+ODLResource = collections.namedtuple('ODLResource', ('singular', 'plural'))
+_RESOURCE_MAPPING = {
+ resources.SECURITY_GROUP: ODLResource(odl_const.ODL_SG, odl_const.ODL_SGS),
+ resources.SECURITY_GROUP_RULE: ODLResource(odl_const.ODL_SG_RULE,
+ odl_const.ODL_SG_RULES),
+}
+_OPERATION_MAPPING = {
+ events.AFTER_CREATE: odl_const.ODL_CREATE,
+ events.AFTER_UPDATE: odl_const.ODL_UPDATE,
+ events.AFTER_DELETE: odl_const.ODL_DELETE,
+}
+
+
+class OdlSecurityGroupsHandler(object):
+
+ def __init__(self, odl_driver):
+ self.odl_driver = odl_driver
+ self._subscribe()
+
+ def _subscribe(self):
+ for event in (events.AFTER_CREATE, events.AFTER_DELETE):
+ registry.subscribe(self.sg_callback, resources.SECURITY_GROUP,
+ event)
+ registry.subscribe(self.sg_callback, resources.SECURITY_GROUP_RULE,
+ event)
+
+ registry.subscribe(self.sg_callback, resources.SECURITY_GROUP,
+ events.AFTER_UPDATE)
+
+ def sg_callback(self, resource, event, trigger, **kwargs):
+ res = kwargs.get(resource)
+ res_id = kwargs.get("%s_id" % resource)
+ odl_res_type = _RESOURCE_MAPPING[resource]
+
+ odl_ops = _OPERATION_MAPPING[event]
+ odl_res_dict = None if res is None else {odl_res_type.singular: res}
+
+ LOG.debug("Calling sync_from_callback with ODL_OPS (%(odl_ops)s) "
+ "ODL_RES_TYPE (%(odl_res_type)s) RES_ID (%(res_id)s) "
+ "ODL_RES_DICT (%(odl_res_dict)s) KWARGS (%(kwargs)s)",
+ {'odl_ops': odl_ops, 'odl_res_type': odl_res_type,
+ 'res_id': res_id, 'odl_res_dict': odl_res_dict,
+ 'kwargs': kwargs})
+
+ self.odl_driver.sync_from_callback(odl_ops, odl_res_type,
+ res_id, odl_res_dict)